Panasonic PT-DX820 Operating Instructions Manual page 33

r For fixed-focus lens (Model No.: ET-DLE030)
SH
SW
SD
L1
L2
L3
L4
A1
A2
*1 The mirror reflection surface cannot be seen from the outside because it is located inside the fixed-focus lens.
Distance between projector
and screen
L2
L3
L4
A2
*1 For details of calculating values, refer to "Formula to calculate projection distance per projection lens" (x page 44).
Attention
f Before setting up, read "Precautions for use" (x page 18).
Especially when the fixed-focus lens (Model No.: ET-DLE030) is used, install the projector so its back plane is parallel to the screen so the
projected image is rectangular.
The vertical keystone distortion in moderate range can be corrected by the [POSITION] menu → [GEOMETRY] → [KEYSTONE] →
[VERTICAL KEYSTONE] (x page 86) even after it is installed. For the range that can be corrected, refer to "[GEOMETRY] projection
range" (x page 34).
f Do not use the projector and the high-powered laser equipment in the same room. The DLP chips can be damaged if a laser beam hits the
projection lens surface.
Chapter 2 Getting Started — Setting up
Projected image
SW
Screen
Projected image height
Projected image width
Projected image size
Projection distance (from the screen to the mirror reflection surface
Distance between the projector and the screen (from the screen to the tip of the lens)
Distance between the projector and the screen (from the screen to the front surface of the projector)
Distance between the projector and the screen (from the screen to the rear surface of the projector)
Distance between the projector and the screen (from the screen bottom edge to the projector top)
Distance between the projector and the screen (from the screen bottom edge to the projector bottom)
= L1
= L1
= L1
= A1
Screen
L2
L1
L3
L4
Formula
+ 0.023
*1
- 0.146
*1
- 0.644
*1
+ 0.175
*1
)
*1
ENGLISH - 33
(Unit: m)
(Unit: m)